Home / 79,681,987,369.16-119,543,944,888.06-28,635,441,041.56

Finding the Fourth Proportional to 79,681,987,369.16, 119,543,944,888.06 and 28,635,441,041.56

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Solution

The fourth proportional to 79,681,987,369.16, 119,543,944,888.06 and 28,635,441,041.56 is: 42,960,695,368.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,681,987,369.16 : 119,543,944,888.06 = 28,635,441,041.56 : x
  2. Step 2: Convert to fraction form
    79,681,987,369.16/119,543,944,888.06 = 28,635,441,041.56/x
  3. Step 3: Cross multiply
    79,681,987,369.16x = 119,543,944,888.06 × 28,635,441,041.56
  4. Step 4: Simplify right side
    79,681,987,369.16x = 3,423,193,585,717,540,290,560
  5. Step 5: Solve for x
    x = 3,423,193,585,717,540,290,560/79,681,987,369.16
  6. Step 6: Final answer
    x = 42,960,695,368.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.